George winship and frederick garraux



(No Model.)

G. WIN-SHIP .& P. GARRAUX.

SAW GOTTON GIN Patented Jan. 6

Geo ye Gar/m 5 7660 alfa'rngu QQS M \QMLMW wk UNITED STATES PATENT CEFICE.

GEORGE WVINSHIP AND FREDERICK GARRAUX, OF ATLANTA, GEORGIA, ASSIGNORS TO THE VVINSHIP MACHINE COMPANY, OF SAME PLACE.

SAW COTTON-GIN.

SPECIFICATION forming part of Letters Patent No. 444,080, dated January 6, 1891.

Application filed June 4, 1890.

To all whom it may concern.-

Be it known that we, GEORGE WINSHIP and FREDERICK GARRAUX, both citizens of the United States, residing at Atlanta, in the county of Fulton and State of Georgia, jointly have invented a new and useful Improvement in Saw Cotton-Gins, of which the following is a specification.

The object of our invention is to provide means for fully straightening out tufts or naps in the lint-cotton and at the same time completely to remove motes and trash therefrom, while saving portions of the lint heretofore wasted, thereby improving the appearance and adding to the value of the product. These ends we attain by combining in a cotton-gin, in the manner hereinafter specified, a series of ribs, saws rotating between them, a stripping brush or cylinder having a continuous periphery in which the brushes are inserted and revolving at a much higher rate of speed than the saws, a revolving carder or whipper running close to the stripping-brush at a much slower speed, and a mote-board interposed between the saws, the stripping brush, and the whipper and provided at its end nearest these devices with an arrowshaped or trian gular head or lip, the projecting edge of which extends toward the whipper and stripping-brush, which construction prevents the eddy which would otherwise occur in the space between the lip and the stripping-brush, the effect of which eddy would be to delay the lint at this point and afford time for it to be seized bythe saws, wasted, or tend to clog the ribs.

The accompanying drawing represents a vertical section through so much of a cottongin embodying our improvement as is neeessary to illustrate the subj cot-mat ter claimed.

The machine, exceptwhere otherwise indicated, is of well-known construction.

The machine is shown as consisting, essentially, of a frame A, a hopper B, ribs C, and saws D rotating between them.

The stripping-brush E is constructed with a solidperimeter in which the usual brushes are inserted. The stripping-brush, it will be seen, is of larger diameter than the saws and is adapted to run at a much higher speed-say four times as fast as the saws-and owing to (No model.)

its larger diameter the speed relative to the saws is even greater than that above indicated. The stripping-brush revolves in contact with the saws and in the same direction and brushes the lint therefrom. Awhip-roll F, covered with card-clothing or equivalent material, rotates close to the stripping-brush near its lower side and contiguous thereto, but at a much slower speed, being, in fact, the same as that of the saws; but owing to its small size its surface velocity is much lesssay at least eight times less-than that of the stripping-brush, which consequently combs out and strips the lint depositedon the whiproll.

An L-shaped mote-board L is interposed between the lower portion of the saws and stripping-brush and the upper portion of the whip roll F. The lower or angular portion of this board encircles two sides of the whip-roll, while its upper part is inclined inward and overlies the whip-roll. This upper inclined edge is straight and terminates in a point close to the saws, while the inner side of this upper end is provided with a triangular lip l, which extends downward toward the whiproll, the center of which it overlies at some little distance therefrom, its inner inclined surface being at about the same distance from and substantially parallel with the stripping-brush. The moteboard thus partially inc-loses the whip-roll on three sides, while its point lies in the triangular space between the saws, the stripping-brush, and the whip-roll. The effect of this organization we find by continuous working to be to prevent the above-mentioned eddy and to allow the lint to be seized by the stripping-brush and saved.

In operation the saws separate the lintfrom the seed in the hopper and draw it to the grate or ribs C, the seed falling through the bottom of the hopper. The more rapidly revolvin g stripping-brush removes the lint from the saws, and by its centrifugal action throws the heavier motes and trash through the space between the saws and mote-board into a suitable receptacle. The mote-board lip prevents the eddy that would otherwise be formed in the space by it and causes the brush to create a strong draft, which carries to the whip-roll lint that would otherwise be caught up by the saw and clog the ribs. The stripping-brush carries the lint to the whipper, and the two in conjunction whip and card it until all the tufts and naps are smoothed and. straightened out, the remaining motes and dirt being separated during this process and dropped through an opening 0 into the motechamber below, while the lint is driven out through the flue K. Much fine lint which otherwise would be carried out by the saws is caught by the point of the mote-board and deflected into the space between it and the stripping-brush and whip-roll, which save and discharge it with the other lint.

Our improved organization enables us to place the saws and whip-roll close to the stripping-brush with the whip-roll in the same vertical plane as the line of contact of the saws and stripping-brush, while the inner end of the triangular lip is in the same plane between the saws and strippingbrush with its upper end terminating at a point much be low their centers, which organization we have found highly advantageous in practice.

Having thus fully described the construction, organization, and operation of our improved cotton-gin, what we claim therein as new and as of our invention is 1. The combination, with the saws, the whip-roll, and the stripping-brush, of the inclined mote-board having its upper end close to the saws and provided with an inwardlyprojecting lip overhanging the whip-roll beneath the point of contact between the saws and stripping-brush and below their axes to deflect the line lint into contact with the stripping-brush and whip-roll, as set forth.

2. The combination of the saws, the stripping-brush having a solid perimeter and with its brushes in contactwith the saws, the whiproll revolving in contact with the lower part of the stripping-brush and in the same direction, and the inclined mote-board L, interposed between the saws and whip-roll with its upper end close to the saws, and provided with an inwardly-projecting lip overhanging the whip-roll, onto which it deflects the lint the combination being and operating as set forth.

3. The combination of the hopper, the ribs, the saws rotating therethrough, the strippingbrush rotating in contact with and in the same direction as the saws, a whip-roll rotating in contact with the lower portion of the stripping-brush and in the same direction, and an inclined mote-board partly inclosing the whiproll, having its upper edge close to the lower portion of the saws, and provided with an inwardly-projecting lip having one face substantially parallel with the stripping-brush and theother with the whip-roll, the combination being and operating substantially as and for the purpose set forth.

4. The hereinbeforedescribed improved cotton-gin, consisting of the combination of the frame, the hopper having an open bottom through which the seed are discharged, the grate of parallel ribs constituting one side of the hopper, saws rotating therethrough,

the stripping-brush rotating in contact with the saws and in the same direction, the whiproll rotating in contact with the lower side of the. stripping-brush and in the same direction, the inclined mote-board partly inclosing the whip-roll, having its upper edge close to the lower portion of the saws and provided with an in\vaidly-projecting lip having one facesubs'lantially parallel with the strippingbrush and the other with the whip-roll, the lint-discharge flue, and the mote-discharge opening therein beneath the whip-roll, these members being organized and operating substantially as and for the purpose hereinbefore set forth.

In testimony whereof we have hereunto subscribed our names.

GEORGE WINSIIIP. FREDERICK GARRAUX.

Witnesses:

R. E. RUSHTON, O. A. Wmsrnr. 

